Traverse-motion for yarn-spinning apparatus.



A. E. RHOADES.

TRAVERSE MOTION FOR YARN SPINNING APPARATUS.

APPLICATION FILED OUT. 8, 1908.

941,648. Patented Nov. 30, 1909.

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ANDREW. B. GRAHAM co. PHUTO-LITNOGRAPMF- i WASHINGYOF. n. O

A. E. RHOADES. TRAVERSE MOTION FOR YARN SPINNING APPARATUS. APPLICATIONFILED OCT. 8, 1908.

941,648,- Patented Nov. 30, 1909.

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B. RHOADES. TRAVERSE MOTION FOR YARN SPINNING APPARATUS.

APPLICATION FILED OUT. 8, 1908. I

Patented Nov. 30, 1909.

3SHBETS-SHEET 3. v

UNITED STATE S FATE I OFFICE.

ALONZO E. RHOADES, OF HOPEDALE, MASSACHUSETTS, ASSIGNOB, T0 DRAPER COM-PANY, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

TRAVERSE-MOTION FOR YARN-SPINNING APPARATUS.

1 0 all whom it may concern:

Be it known that I, ALoNzo E. RHoADEs, a citizen of the United States,and resident of Hopedale, county of Worcester, State of Massachusetts,have invented an Improvement in Traverse-Motions for Yarn-SpinningApparatus, of which the following description, in connection with theaccompanying drawing, is a specification, like characters on the drawingrepresenting like parts.

This invention has for its object the production of a novel traversemotion for use in connection with yarn spinning apparatus, whereby thereciprocation of the ring-rail is so controlled that the yarn is laidupon a yarn-receiver or bobbin with a primary winding and thereafterwith a main or service winding to complete the upbuilding 0f theyarn-mass.

I-leretofore spinning apparatus has been devised to lay the primarywinding in the form of a relatively,well-defined bunch, for particularcooperation with a filling-feeler when such bobbins were used in anautomatic filling-replenishing loom, as for instance in my prior UnitedStates patents Nos. 686,906, 722,145 and 798,704, and in a later form ofspinning apparatus the wind ing is so governed and controlled that thedistinctive bunch is modified to such a degree that certain practicalobjections thereto are overcome. This later apparatus forms the subjectmatter of United States Patent No. 882,7 93 granted to Jonas NorthropMarch 24, 1908 and by such apparatus a bobbin is built having a shorttraverse at the lower end or butt, lengthening into a normal or maximumtraverse somewhere between the top and bottom of the bobbin, andcontinuing with the latter traverse until the yarn-mass is completed.

In my present invention I also start the winding with a short traverseand gradually increase the same up to a predetermined point, after whichthe winding is completed with a traverse of uniform length, but Iaccomplish the desired result by novel and very simple mechanism and myinvention differs from that of Northrop in certain particulars to bepointed out hereinafter. Herein the speed of the traverse, during onereciprocation of the ring-rail, is uniform throughout the period ofincreasing traverse, as well as afterward, while in the Northropstructure the traverse, while in- Specification of Letters Patent.

Application filed October 8, 1908.

Patented Nov. 30, 1909.

Serial No. 456,716.

creasing in length, moves more slowly toward the upper end of the strokeof the ring-rail and lays more yarn at such part. This reduction in thespeed is for the purpose of laying more yarn than would be laidotherwise, and to thereby obviate the building of a pear-shaped bobbin.

In apparatus of this general character it is well understood thatwhether the stroke of the ring-rail be longer or shorter it is effectedin the same time, and a certain fixed amount of yarn is laid on thebobbin at each traverse, so that obviously the shorter the traverse thegreater the number of superposed layers of yarn laid upon the bobbin.winding is begun with a short traverse, as in my present invention, orelse too much yarn will be laid at the lower end of the bobbin, and Ihave corrected or avoided the objection in a novel and effective way, byvarying the action of the so-called pick mechanism. This mechanismgoverns the gain of the traverse, whereby the ringrail gradually rises alittle higher on the up stroke and descends not quite so low on thedownstroke, as is well understood by those skilled in the art. Herein Ivary the gain inversely t0 the length of the traverse, so that when thetraverse is short- This must be corrected when the est the gain isgreatest, the latter diminishing gradually from its maximum as thetraverse increases from its minimum, until uniform or constant traverseis reached, at which point the gain becomes uniform and so continuesuntil the winding is completed. This initial maximum gain, in connectionwith the initial minimum traverse, to prevent too much yarn being laidat the lower or butt end of the yarnreceiver or bobbin, is new so far asI am aware, as well as the mechanism for effecting the variations in thetraverse and in the gain.

The various novel features of my invention will be fully described inthe subjoined specification and particularly pointed out in thefollowing claims.

a similar view of the other member or lever of the builder-motion whichhas a variable stroke, together with the parts carried by said'member;Fig. 6 is a detail of a portion of the member having the variablestroke, viewed from the opposite side; Fig. 7 is an enlarged sideelevation of a mutilated gear and cooperating rack forming a part of thetraverse shifting or changing means, to be referred to; Fig. 8 is anenlarged detail of the worm and worm-gear forming a part of thebuilder-motion, the worm-gear being shown in section; Fig. 9 is a sideelevation of a bobbin with a small portion of yarn wound thereupon,shortly after the beginning of the winding operation; Fig. 10 is asimilar view but showing in section the winding with the increasingtraverse finished, the completed or full bobbin being shown by dottedlines.

I. have shown my invention as applied to a spinning apparatus whereinthe ring-rail is raised by a lifting-weight and depressed by or throughmeans actuated and controlled by the builder-motion, the windingmechanism thereof gradually letting off the chain from the barrel toeffect the gain of the traverse as the winding proceeds, and after themaximum traverse is reached said winding mechanism operatessubstantially in the usual manner. Prior to such time, however, thewinding mechanism operates in a novel manner, imparting the maximum gainat the beginning of the winding and gradually decreasing it to aconstant amount by the time the gradually increasing traverse attainsits maximum, as will be explained in detail.

The spindle-rail 1, spindles 2, vertically reciprocating ring rail 3having suitable rings l, the lifter-rods, as 5, rocker 6 cooperatingtherewith and provided wit-h a lifting-weight 7, Fig. 1, to elevate theringrail, the rocker-arm 8 and transmitting link 9 may be and are allsubstantially of well known construction. Rocker 8 has a branch 10 towhich is adjustably attached a flexible connection or chain 11 passingover a guidesheave 12 and thence down to the winding drum of thebuilder-motion, as will appear hereinafter.

The builder-motion in accordance with my invention is compound andcomprehen'ds two separate members or levers 13 and 18, the member 13having a fixed fulcrum lt and being provided with an extension 15 on oneside of the fulcrum and with a roller or other stud 16 at the oppositeside of said fulcrum, said stud constituting a follower to cooperatewith a single actuator, shown in Fig. 2 as a traverse-cam 17 having fourpoints, a weight \V on the extension 15 keeping the follower inengagement with the cam. The other member 18 is also made as a lever,having a fixed fulcrmn 19 behind but substantially in the samehorizontal plane as the fulcrum 1-1, the said fulcra being supported atone end on a bracket 20 rigidly secured to and depending from a part ofthe main framework of the apparatus, the opposite ends of the fulcrabeing supported in the end A of the main framework.

As shown in Fig. 3 the lever-members or arms 13 and 18 of the compoundbuildermotion have elongated transverse hubs 13 18 through which thefulcrum shafts extend, preventing any twisting of said members andaffording a firm and steady support therefor, said members beingarranged one above the other but offsetlaterally, see Fig. 3, so thatthey oscillate in parallel vertical planes. The member or arm 13 has aconstant stroke, as will be apparent, due to cooperation of its follower16 with the actuating cam 17, but the member or arm 18, while oscillatedby or through the member 13 has a variable stroke, as will be explained,said members 13 and 18 thus having a differential movement. The frontend of member 13 is extended at 21 and has a. hole 22 through whichloosely passes a rod provided above and below the extension 21 withfixed collars 2-1, the lower end of the rod be ing connected with apawl-carrier 25 fulcrumed on the pick-shaft 26, the actuating orpick-pawl 2T cooperating with the pick wheel 28 fast on said shaft 26 torotate the same by rocking movement of the pawt carrler.

The pick-shaft is mounted in bearings 29, 30 on the member 18 and hasfast upon it the usual worm 31 meshing with the worm-gear 32 fixedlyconnected with the drum 33 of the winding mechanism, to which drum theend of the chain 11 is secured, the chain passing around the drum andbeing gradually let off therefrom as the operation of laying the yarn onthe bobbins proceeds, said drum and gear being rotatably mounted on alateral stud 34. extended from the member 18.

It will be seen that in the present embodiment of my invention there isbut a single transmittii'ig connection, viz: the chain 11, between thebuilder-motion and the ring-rail, which greatly simplifies thestructure, the control of the rail as to traverse and gain being locatedin the buildermotion and being transmitted through the connection 11.

A mutilated gear 35 is fixedly secured to or forms a part of the drum atits outer end, said gear cotiperating with the teeth of a rack-bar 36longitudinally slidable in a guide-box 37 pivotally mounted on the stud34 outside the mutilated gear. As the wormgear, drum and mutilated gear35 are rotated in the direction of the arrow, Fig. 7, the rack-bar 36will be moved forward and such movement effects the change or shift inthe traverse, as will now be explained. The rear end of the rack-bar ispivotally connected at 38 with an upturned link 39 fulcrumed at itslower end on a lateral stud 40 on the member 18 of the builder-motion,the upper end of the link having a lateral boss 41 forming a bearing fora pin 42 extended laterally from a short roll-carrying arm 43. Saidroll-carrier has fixedly secured to it a horizontal stud 44 on which aremounted rotatably side by side two like rolls 45, 46, Fig. 3, the latterextending beneath the member 13 and coiiperating there with, while theroll 45 .bears upon a rest made as an arm 47 pivotally connected at 48with the enlargement 49 of the member 18 and being sustained at its freeend by an adjusting screw 50. The rest 47 is movable in unison with themember 18 at all times, the adjusting screw 50 being used to take up anywear or undue looseness, and to keep said rest in proper position withrelation to the rolls 45, 46 and the under side of the member 13 of thebuilder-motion, and to control the amount of yarn in theprimarystud-bolt 48 which connects the rest and the enlargement 49 beingsustained in the built up portion 30 at the top of the bearing 30. Thewinding-back operation is limited in any suitable manner, as by astop-screw 51 inserted between two of the teeth of the worm-gear 32,Fig. 8, which acts as would a blank portion of the gear when broughtinto engagement with the worm 31, and in order to make some variation inthe winding-back the gear is shown as provided with additional sockets52 for the stop-screw.

The weight 7 acts through the chain 11 to lift the free end of themember 18 of the builder-motion and press the-rest 47 against the roll45, and to keep the roll 46 pressed against the underside of the member13, hence it will be apparent that when the latter member is depressedit will act through the rolls 45, 46 and the rest 47 to depress themember 18. As said members have different fulcra it will be obvious thatsaid members will not move in unison, and it will be equally obviousthat this differential movement will depend upon the position of therolls 45, 46 of the traverse-shifting means, such means comprising thesaid rolls, the roll-carrier 43 and the link 39. The stroke of themember 13 is constant, as it is oscillated by direct co6peration withthe actuating cam 17, and the nearer the shifter rolls 45, 46 are to thefulcrum 14 the shorter will be their path of movement, and consequentlythe stroke of the member 18 as it oscillates about its fulcrum 19 willbe at its minimum when said rolls are in their extreme right-handposition, as shown in Fig. 2, at the commencement of the winding of aset of bobbins, the two members 13 and 18 being shown in their lowestposition. But as the fulcrum 19 is at a considerable distance behind thefulcrum 14 the member 18 will swing through a much shorter arc than thatof the member 13, and hence on the up stroke of the latter its free endwill move the faster and away from the free end of the member 18, and onthe down stroke the free ends of said members approach each other, thisrelative movement being at a maximum at the beginning of the windingoperation. Consequently the stroke of the pick-pawl 27- will be at itsmaximum at such time, as the separation of the members 13 and 18 setsthe pawl while their approach efiects the operative stroke of the pawl,so that the amount of angular movement of the drum 33 will be greatest,letting off the maximum length of the transmitting connection 11. Asthis letting ofi of the chain imparts the gain to the traverse it willbe manifest that the maximum gain is coincident with the minimumtraverse, for the amplitude of the oscillation of the member 18determines the length of the traverse.

The primary Winding of yarn is now laid upon the yarn-receiver or bobbin53, as indicated at 54, Fig. 9, but the intermittent rotative movementof the pick-shaft 26 also acts through the worm and Worm-gear to advancethe mutilated gear 35 and gradually move the rack-bar 36 to the left,Fig. 2, gradually and of course very slowly swinging the link 39 of thetraverse-shifting means in the same direction. This movement of saidshifting means gradually moves the shifter rolls 45, 46 away from thefulcra of the two members 13 and 18, the effect being to graduallyincrease the amplitude of movement of said rolls the farther they areremoved from the fulcrum 14, and in consequence of such shifting theamplitude of oscillation of the member 18 gradually increases, tothereby gradually lengthen the traverse; 1

The traverse attains its maximum when the complete change in theposition of the traverse-shifting means is effected, which occurs whenthe mutilated gear has moved the rack-bar 36 forward as far as it can,the rack-bar being held in such position, as will be explained. Duringthis gradual increase in the stroke of the member 18 the rolls 45, 46have been gradually moving away from the fulcrum 19 of the member 18,and as a result the movement of the free ends of the members 13 and 18toward and from each other has been gradually diminishing, with acorresponding diminution in the gain as the amount of chain let ofl fromtime to time has been gradually reduced.

The diminishing gain attains its minimum and becomes constant at thetime that the increasing traverse reaches its maximum and becomesconstant, the primary winding having been completed and presentingsubstantially the shape shown at 55 in Fig. 10, the secondary or mainwinding being continued thereafter with a constant traverse and gain.

After the traverse-shifting means has completed its movement there willstill be enough relative movement of the oscillating members 13 and 18to impart the requisite gain, which is constant as the relative movementof the oscillating members is constant.

The length of the initial traverse is determined by the position of theshifter rolls 45, 46 at the beginning of the winding, according towhether they are positioned as shown in Fig. 2 or to the right or leftthere of, and as they cannot be changed without a corresponding changein the gain the two functions of the builder-motion will maintain alwaysthe proper relationship.

As the shifter rolls are freely and independently rotatable on the stud44 there practically no friction between them and the members 13 and 18of the builder-motion during the oscillation and differential movementsof said members.

Both the gain and the traverse are controlled by the builder-motion as awhole, the single connection 11 transmitting the proper changes to thering-rail, and while the means which effects the gain governs thetraverseshifting means the latter, through the changes in the positionof the shifter rolls, has a reciprocal action upon and control over themeans which effects the gain.

By making the maximum gain when the traverse is at its minimum the yarnis laid upon the yarn-receiver in such manner that it gradually buildsout to the maximum diameter of the yarn-mass, the latter being completedin substantially the form inclicated by dotted lines Fig. 10, without anundue quantity of yarn at the lower end of the bobbin, so that thebuilding of a pearshaped mass of yarn is obviated.

By means of the adjusting screw 50 the angle between the top of the rest47 and the under side of the arm ormember 13 can be varied, and thisvariation regulates the amount of yarn in the primary winding bylengthening or shortening the time required to change from maximum tominimum gain.

The longer such time the larger the quantity of yarn laid with thegradually increasing traverse, and the shorter such time the less willbe the quantity of yarn laid during the period of increasing traverse,as will be manifest.

It will be remembered that as the shifterrolls 45, 46 move toward theleft, Figs. 2 and 5, the movement of the members 13 and 18 toward andfrom each other gradually diminishes and becomes constant when the shiftof said rolls is completed.

Now if the adjusting screw 50 be turned to separate the rear end of therest 47 and the adjacent part of the member 18 the rest will be turnedon its pivot 48, and the greater the separation the greater will be theangle between the top of the said rest and the bottom of the member 13with which the roll 46 cooperates, said surfaces diverg- .ing toward theleft, Fig. 2. That being so each forward movement of the shifter-rollswill permit an increased movement of the free end of the member 18relative to the free end of member 13, as compared with such movementwhen the angularity of the rest is less, and hence the time when suchrelative movement becomes constant is hastened. In other words the timeduring which the gain and the traverse are changing will be shortened,and less yarn will be laid on the yarn-receiver. On the other hand, ifthe adjusting screw 50 is turned to drop the rear end of the rest 47toward the member 18 the top of the rest and the roll engaging surfaceof member 13 will converge toward the left, Fig. 2, so that as theshifter-rolls are moved step by step to the left the time at which therelative movement of the free ends of members 13 and 18 becomes constantwill be retarded. Such retardation manifestly increases the period ofvarying gain and traverse, so that more yarn will be laid upon theyarn-receiver during such period. By the means described the relativequantity of yarn laid in the primary and secondary windings is varied asmay be desired. The nntoothed or continuous portion of the mutilatedgear 35 has a diameter substantially equal to that of a circle whichwould intersect the teeth half-way between their bases and points, inorder to lock the rack-bar 36 in its forward position effected by thecotiperation of the teeth of the mutilated gear. That is, during theperiod of increasing traverse and decreasing gain the rotation of thegear 35 acts to move the rackbar 36 forward, as has been explained, andthereafter the continued rotation of the gear carries its teeth out ofmesh with the teeth on the rack-bar, so that the latter could slideback, if not prevented, while the gear 35 rotates during the completionof the winding. Herein, by making the nntoothed part of the gear 35 ofgreater diameter than the circle senses on which the bases of its teethlie, this untoothed part is brought against the rear face of therearmost tooth on the rack-bar-afterthe two sets of teeth disengage,thereby positively preventing any retrograde movement of the rack-bar asthe winding is completed.

Having fully described my invention,

what I claim as new and desire to secure by Letters Patent is 1. Inapparatus of the class described, a'

builder-motion including a member having a constant stroke and a memberhaving a va riable stroke, a reciprocating ring-rail, a connectionbetween it and the builder-motion, and means cooperating with the saidmembers of the builder-motion to act through said connection and effectreciprocation of the ring-rail with a gradually increasing traverse andgradually decreasing gain to a predetermined point, and thereafter tocontinue automatically the reciprocation of the ring-rail with a uniformtraverse and gain.

2. In apparatus of the class described, a

builder-motion including a member having a constant stroke and a memberhaving a variable stroke, a reciprocating ring-rail, a single connectionbetween it and the secondnamed member of the builder-motion, meanswhereby the first-named, member acts through the second-named member toeffect, through said single connection, reciprocation of the ring-railwith a gradually increasing traverse to a predetermined maximum, and

thereafter to continue automatically the remum to a predeterminedmaximum, a reciprocating ring-rail, a connection between it and saidlatter member to effect reciprocation of the ring-rail with a graduallyincreasing traverse to the maximum, and an instrumentality governed bythe differential movement of said members to vary the gain inversely tothe variation of the traverse.

4. In apparatus of the class described, a compound builder-motionincluding two oscillating and differentially movable members, anactuator to oscillate one of said members with a constant stroke, meanson the other member to cause a gradual increase in the stroke thereoffrom minimum to maximum, a reciprocating ring-rail operaativelyconnected with said member, whereby the ring-rail is first reciprocatedwith a gradually increasing traverse and thereafter with a uniformtraverse, and an instrumentality also carried by saidvariably-oscillating member to gradually and automatically diminish thegain from maximum to minimum during the period of gradually increasingtraverse.

5. In apparatus of the class described, a compound builder-motionincluding two oscillating and differentially movable members, anactuator to oscillate one of said members with a constant stroke, meansto vary the differential movement of said members and thereby graduallyincrease the stroke of the variable member from minimum to apredetermined maximum, a reciprocating ring-rai1, a connection betweenit and said latter member to effect reciprocation of the ring-rail witha gradually increasing traverse to the maximum, and an instrumentality,including a pawl and ratchet actuated and governed by the dilferentialmovement of said oscillating members, to gradually diminish the gain ofthe traverse during the period of gradually increasing traverse.

6. In apparatus of the class described, a compound builder-motionincluding two oscillating members having fixed and different fulcra, anactuator to oscillate one member with a constant stroke, means actedupon by said member to efiect oscillation of the other member with astroke gradually increasing up to a predetermined maximum, areciprocating ring-rail, a connection between it and the member havingthe variable stroke, and mechanism operated by the differential movementof said members to control said means and cause the same to effect theincrease in the stroke of the second-named member.

7 In apparatus of the class described, a compound builder-motionincluding two adjacent, separately fulcrumed members, an actuator tooscillate one of said members with a constant stroke, shiftable meanscooperating with said members whereby the other one is oscillated with agradually increasing. stroke up to a predetermined maximum, areciprocating ring-rail, a connection between it and the member havingthe variable stroke, whereby the ring-rail is reciprocated wit-h atraverse gradually increasing to a maximum, and an instrumentality togradually diminish the gain of traverse while the traverse increases,said instrumentality also governing said shiftable means.

8. In apparatus of the class described, means to efiect the winding ofyarn upon a yarn-receiver with a traverse gradually increasing fromminimum to maximum and to complete the winding with the maximumtraverse, and means to impart gain to the traverse gradually decreasingfrom maxi-' mum to minimum and to continue the minimum gain during theperiod of maximum traverse, combined with an oscillating member uponwhich both of said means are mounted, and a connection between saidseparate means whereby the operation of each is governed by or throughthe operation of the other.

9. In apparatus of the class described, means, including abuilder-motion, comprehending two differentially movable members toeffect automatically the winding of yarn upon a yarn-receiver with agradually increasing traverse to a predetermined maximum, and thereafterto complete the winding with such maximum traverse, an actuator for saidmeans, cooperating directly with one of the said members of thebuildermotion, and means to gradually and automatically reduce the gainof the traverse during the period of gradually increasing traverse andthereafter to maintain the gain constant.

10. In apparatus of the class described, means to effect the winding ofyarn upon a yarn-receiver with a traverse gradually and uniformlyincreasing from minimum to maximum and to complete the winding with suchmaximum traverse, means to impart the gain to the traverse and aninstrumentality to govern automatically the change from minimum tomaximum traverse and contemporaneously therewith to gradually change thegain from maximum to minimum.

11. In apparatus of the class described, in combination, abuilder-motion including a member having a constant stroke, meansmounted independently of said member but actuated thereby to effectautomatically the formation of a primary winding with a graduallyincreasing traverse, and there after a secondary winding with a uniformtraverse, of yarn upon a yarn-receiver, the speed of the traversethroughout a stroke being uniform, and an instrmnentality to effectautomatically a gradual decrease in the the gain during the period ofprimary wmdlng.

12. In apparatus of the class described, in combination, abuilder-motion including an oscillating member, an actuating device toimpart a constant stroke thereto, means mounted independently of butactuated and moved bodily by said member to effect automatically theformation of two successive windings of yarn upon a yarn-receiver, thefirst winding being laid with a gradually increasing traverse, and witha gradually decreasing gain, the second winding being laid with auniform traverse and with a uniform gain, and an instrmnentality havinga bodily movement in unison with said means and directly connectedtherewith to control the variation in the gain.

13. In apparatus of the class described, in

combination, a builder-motion including an oscillating member having aconstant stroke, two different means to effect, respectively, theformation of a winding of yarn upon a yarn-receiver with a traversegradually increasing from minimum to maximum, and gain of such traversegradually decreasin from maximum to minimum, one of sai means beingdirectly actuated by or through said oscillating member, and acontrolling connection between said se arate means whereby the operationof one is governed by or through the operation of the other.

14. In apparatus of the class described, in combination, abuilder-motion including an oscillating member having a constant stroke,a second member oscillated thereby, two different means mounted on saidsecond member, one'of said means causing said second member to graduallyincrease its stroke to a predetermined point, to thereby effect theformation of a winding of yarn upon a yarn-receiver with a traversegradually increasing from minimum to maximum, the other of said meansbeing actuated by the differential movement of said oscillating membersto gradually decrease the gain during the period of increasing traverse,and a connection whereby the last named means controls the operation ofthe first-named means.

15. In apparatus of the class described. a builder-motion including anoscillating member having a constant stroke, and means actuated by saidmember, and including a second oscillating member, to effectautomatically the formation of two successive windings of yarn upon ayarn-receiver, the first winding with a gradually increasing traverse,combined with automatic means carried by the second oscillating memberto gradually decrease the gain of the traverse during the first windingand to maintain the gain uniform during the second winding, and aninstrumentality by which each of said means controls the operation ofthe other means.

16. In apparatus of the class described, a buildermotion including anoscillating member having a constant stroke, and means actuated by saidmember to effect antomatically the formation of two successive windingsof yarn upon a yarn-receiver, the first winding with a graduallyincreasing traverse, said means including a traverseshifting device todetermine the rate of such increase, combined with an instruinentalityto govern the traverse-shifting device and to decrease the gain of thetraverse as the traverse increases.

17. In apparatus of the class described, a buildermotion including anoscillating member having a constant stroke, and means actuated by saidmember to effect automatically the formation of two successive windingsof yarns'upon a yarn-receiver, the? first winding with a graduallyincreasing traverse, said means including an automatic traverse-shiftingdevice to determine the rate of such increase, combined with aninstrumentality actuated by said oscillating member to vary the gain ofthe traverse in versely to the variation of the traverse.

18. In apparatus of the class described, a builder -motion including anoscillating; member having a constant stroke, and a second oscillatingmember having a variable stroke, and shiftable means intermediate saidmembers to effect a gradual increase in the stroke of the second-namedmember up: to a predetermined maximum, and there-n after to effect theoscillation of said member I with a uniform stroke, a ring-rail operatively connected with and reciprocated by said latter member with firsta gradually increasing, and then a uniform, traverse, combined with aninstrumentality operated by or through the differential movement of saidoscillating members to govern the operation of said shiftable means.

19. The combination, with a reciprocating ring-rail and a builder-motionincluding two oscillating members one of which has a constant stroke, ofa connection between the other member and the ring-rail to control themovement of the latter, means whereby the member having a constantstroke oscillates the other member with a gradually increasing stroke,and then with a uniform stroke, to effect primary and secondary windingsof yarn on a yarn-receiver, the first with a gradually increasingtraverse, and an instrumentality to control said means and govern therate of increase in the stroke of the variably'oscillating member.

20. The combination, with a reciprocating ring-rail and a builder-motionincluding two oscillating members one of which has a constant stroke,and an actuating cam to impart such constant stroke, of a singleconnection between the other member and the ring-rail to control themovement of the latter, means whereby the member having a constantstroke oscillates the other member, first with a gradually increasingstroke and then with a uniform stroke, to correspondingly vary thetraverse of the ring-rail, and an automatically operated instrumentalityto govern said means and also to gradually diminish the gain during thegradually in creasing traverse of the ring-rail.

21. The combination, with a reciprocating ring-rail, a builder-motionincluding two oscillating members, and a connection between one of saidmembers and the ringrail, of means whereby said members are oscillatedwith a differential movement gradually decreasing from a maximum to aminimum, the member connected with the ring-rail thereafter beingoscillated with a uniform stroke, and means operated by the differentialmovement to gradually decrease the gain of the ring-rail from maximum tominimum as the differential movement decreases.

22fThe combination, with a reciprocating ring-rail, a builder-motionincluding two oscillating members fulcrumed one behind the other, and anactuating cam to impart a constant stroke to one of said members, of aconnection between the other member and the ring-rail, to control themovement thereof, traverseshifting means including shifter-rollsinterposed between.

and cooperating with said oscillating members, whereby the member havinga constant stroke effects oscillation of the other member with a strokevarying in length according to the position of said rolls, and aninstrumentality to operate. said means and thereby shift the position ofthe rolls, to effect a primary winding of yarn upon a yarn-receiver,with a gradually increasing traverse, and thereafter a secondary windingwith a uniform traverse, said instrumentality also controlling the gainand varying the same automatically inversely to the variation in thetraverse.

23. The combination, with a reciprocating ring-rail, a builder-motionincluding two oscillating members fulcrumed one behind the other, and anactuating cam to impart a constant stroke to one of said members, of aconnection between the other member and the ring-rail, to control themovement thereof, traverse-shifting means mounted on one member andcooperating with both, whereby the cam-actuated member effectsoscillation of the other member with a stroke varying in length asdetermined by said means, an instrumentality mounted on the memberhaving the variable stroke and actuated by or through differentialmovement of said members, to operate said traverse-shifting means andalso to start the gain at the maximum and gradually decrease the same toa predetermined point, the oscillating member connected with thering-rail during such period imparting a traverse thereto graduallyincreasing from minimum to maximum.

24. The combination, with a reciprocating ring-rail, a compoundbuilder-motion including two members having fixed and independent fulcralocated one behind the other, a cam cooperating with and to oscil' lateone member with a constant stroke, a single connection between the othermember and the ring-rail, means whereby the latter member is oscillatedby the first member with a gradually increasing stroke and then with auniform stroke, to impart to the ring-rail first a gradually increasingtraverse up to a predetermined maximum and thereafter a traverse ofuniform length,

,to minimum during the period of gradually increasing traverse, andmeans to vary the length of such period of increasing traverse.

26. In apparatus of the class described, means to effect the winding ofyarn upon a yarn-receiver with a traverse gradually increasing fromminimum to maximum and to complete the winding with the maximumtraverse, means to impart gain to the traverse varying in an inverseratio to the variations in the length of the traverse, and manuallyadjustable means to vary the relative quantity of yarn laid during theperiods of gradually increasing and maximum traverse.

27. In apparatus of the class described, in combination, abuilder-motion including an oscillating member having a constant stroke,two different means to effect, respectively, the formation of a windingyarn upon a yarn-receiver with a traverse gradually increasing fromminimum to maximum, and gain of such traverse gradually decreasing frommaximum to minimum, one of said means being directly actuated by orthrough said oscillating member, a controlling connection between saidseparate means whereby the operation of one is governed by or throughthe operation of the other, and a manually adjustable device to increaseor decrease the time during which said separate means cause varyingtraverse and gain.

28. In apparatus of the class described, a builder-motion including anoscillating member having a constant stroke, and means actuated by saidmember to effect automatically the formation of two successive windingsof yarn upon a yarn-receiver, the first winding with a graduallyincreasing travverse, combined with automatic means to graduallydecrease the gain of the traverse during the first winding and tomaintain the gain uniform during the second winding, and an adjustabledevice to increase or decrease the time during which said automaticmeans gradually decreases the gain, to thereby increase or decrease theamount of yarn in the first winding.

29. In apparatus of the class described, in combination, abuilder-motion including an oscillating member having a constant stroke,two different means to effect, respectively, the formation of a windingof yarn upon a yarn-receiver with a traverse gradually increasing fromminimum to maximum, and gain of such traverse gradually decreasing frommaximum to minimum, one of said means being directly actuated by orthrough said oscillating member, and including a mutilated gear rotatedstep by step throughout the winding operation, a rack-bar to cooperatewith the said gear and connected with the means which effect thetraverse, rotation of the gear when in mesh with the rack-bar moving thelatter and thereby varying the traverse, and means on the gear tocooperate with and prevent retrograde movement of the rack-bar after itsteeth have been disengaged from the teeth of said gear, the latter andthe rack-bar constituting a controlling connection between said separatemeans whereby the operation of one is governed by or through theoperation of the other.

30. The combination, with a reciprocating .'ring-rail and abuilder-motion including two oscillating members, an actuatin cam to1mpart a constant stroke to one of said members, and a winding drum onthe other member having an attached mutilated gear, of a singleconnection between the drum and the ring rail to control the movement ofthe latter, traverse-shifting means cooperating with the oscillatingmembers, to cause oscillation of the drum-carrying member with a strokethe length of which is governed by said means, a rack-bar operativelyconnected with said means and adapted to cooperate with and be moved bythe mutilated gear to effect through the said means a primary winding ofyarn upon a yarn-receiver with a gradually increasing traverse, alocking device to prevent return movement of the rackbar after its teethhave been disengaged from the teeth of the mutilated gear, and aninstrumentality to effect rotation of the druln and gear and graduallydecrease the gain from maximum to minimum during the period of graduallyincreasing traverse, continued rotation of the mutilated gear while therack-bar is locked imparting uniform gain to the traverse with which thewinding is completed.

In testimony whereof, I have signed my name to this specification in thepresence of two subscribing witnesses.

ALONZO E. RHOADES.

Vitnesses Jnssn D. BROMLEY, EDWARD DANA OsGooI).

